Planing-machine.



J. R. BLAKESLEE, DEG'D.

J. R. BLAKESLEE, m, ADMINISTRATOR.

PLANING MAGHINE.

APPLIOATION FILED MAR. 24, 1905.

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J. R. BLAKESLEE, DEGD. J. R. BLAKESLEE, m, ADMINISTRATOR.

PLANING MACHINE.

APPLIOATION FILED MAR. 24, 1905.

Patented July 6, 1909.

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PLANING MACHINE. V APPLICATION rum) MAR. 24, 1905.

927,448. Patented July 6, 1909.

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UNITED STATES PATENT OFFICE.

JOHN It. BLAKESLEE, OF GLENVILLE, OHIO; JOHN R. BLAKESLEE, .IR., ADMINISTRATOR OF SAID JOHN R. BLAKESLEE, DECEASED, ASSIG-NOR TO THE AJAX MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

PLANTING-MA CHINE Specification of Letters Patent.

Patented July 6, 1909.

To all whom it may concern:

Be it known that I, Jomv R. BLAKESLEE, a citizen of the United States, resident of Glenville, county of Cuyahoga, and State of Ohio, have invented a new and useful Improvement in Planing-Machines, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention relates to planing machines, and particularly to planing machines for operating upon large and cumbersome work.

The object of the invention consists in providing a planer structure whereby the planing operation may be performed upon such large work in a manner more economical than has heretofore been practiced.

Said invention consists of means hereinafter fully described and particularly set forth in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting but one of various mechanical forms in which the principle of the invention may be used.

Figure 1 represents a plan view of a planer embodying my invention; Fig. 2 is a side elevation thereof; Fig. 3, a vertical, longi tudinal. cross-section taken on the line 3-3, Figs. 1 and 4 and Fig. lis an end elevation of said planer as viewed from the left in Figs.

1 and 2.

The frame of the machine is formed or cast integral with. the bed plate A which is mounted upon a suitable foundation so as to bring its upper surface a in the same planewith the floor of the shop. Four standards a a etc., forming part of the frame support two longitudinal parallel members a a? integral therewith.

The four standards a a 850., are, as shown in Figs. 1. and 4 disconnected from each other between their upper and lower extremities so as to leave a wide and roomy space intermediate thereof for receiving the work, which is placed and secured upon the bed plate. In the upper surface of each longitudinal member a is formed a groove at, Fig. l, in which are mounted the slides l) b respectively of the reciprocating tool. holding head B. This head is held against upward displacement by means of gibs a a which extend along almost the entire length of the groove as shown in Fig. 1, that is from the one end. of the frame to within a comparatively short distance of the other end. Surmounting the latter end of the frame and connecting the two corresponding standards a a, is yoke A securely bolted to the outside of the latter and arched so as to allow the head B to pass beneath it as shown, and mounted in this yoke is a train of suitable gears one of whose members engages, from above, a longitudinal rack B formed in and secured upon the head B, Fig. 1. By means of this train of gears, suitable driving pulleys and automatically operating belt shifting mechanism, the said head may be reciprocated so as to cause the tool b to pass bacl ward and forward in the worlereceiving space and between the standards a a, from a point in the vicinity of the yoke A to a point somewhat beyond the opposite end of the frame. An intermediate position of the tool is shown in dotted lines in Fig. 2. The tool-holder B is mounted to slide across the end face of the slide B, and suitable mechanism, which per 56 does not form any part of my invention, is provided for automatically feeding same along said face, as will be readily understood by those skilled in the art.

By placing the work receiving space between the standards which support the guide-ways, it will be seen that the work may be so placed as to cause the tool, at all points of its operation, to effect a pressure directly against a firm resistance vertically above it. Any deleterious results arising from binding are hence prevented. By means of my machine a comparatively light structure is obtained which is capable of effecting a large cut and of operating upon. large and heavy work. The inside of each standard is provided with a series of steps or lugs a a located in different horizontal planes. When it is necessary, by reason of the height of the piece of work to be operated upon to raise same in order to bring it within the sphere of action of the tool, an auxiliary removable bed plate A is placed and supported u )on these steps or lugs, that quartet oflugs eingselected for such sup port as will give the work the proper adjustment, as will be readily understood.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the follow ing claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. In a planer, the combination of a frame constructed of four standards; and two longitudinal, parallel members supported thereby and formed with guide-ways on their upper faces, the space intermediate be tween said standards being open for the reception of work; an arched yoke secured to said standards at one end of such space; driving mechanism supported within said yoke; a bed-plate being fixed with respect to said frame and forming the lower limits of such space, an extended substantially flat, horizontally disposed reciprocatory head provided with a centrally arranged longitudinally extending rack and having its opposite ends resting on the guide-ways provided by said frame; a tool holder mounted r on one end of said head and transversely reciprocable across the same; and means substantially as described adapted to reciprocate said head and tool holder, respectively.

2. In a planer, the combination of a frame including four standards, and two longitudinal, parallel members supported thereby and formed with guide-ways on their upper faces, the space between said standards being open for the reception of work; an arched yoke connecting the standards at one end of such space; a bed-plate for holding the work, said bed-plate being fixed with respect to said frame and forming the lower limits of such space; a reciprocating toolholding head having its opposite ends slide ably resting on the guide-ways provided by said frame; a tool holder mounted on one end of said head and transversely movable across the same; a centrally arranged longitudinally extending rack borne by said head; and driving mechanism supported within said arched yoke including a gear in mesh with said rack, and means adapted to move said tool holder as stated.

Signed by me, this 22nd day of March 1905.

JOHN R. BLAKESLEE.

Attested by E. M. N ORLING, A. E. MERKEL. 

